describe :io_pos, shared: true do before :each do @fname = tmp('test.txt') File.open(@fname, 'w') { |f| f.write "123" } end after :each do rm_r @fname end it "gets the offset" do File.open @fname do |f| f.send(@method).should == 0 f.read 1 f.send(@method).should == 1 f.read 2 f.send(@method).should == 3 end end it "raises IOError on closed stream" do -> { IOSpecs.closed_io.send(@method) }.should raise_error(IOError) end it "resets #eof?" do open @fname do |io| io.read 1 io.read 1 io.send(@method) io.eof?.should == false end end end describe :io_set_pos, shared: true do before :each do @fname = tmp('test.txt') File.open(@fname, 'w') { |f| f.write "123" } end after :each do rm_r @fname end it "sets the offset" do File.open @fname do |f| val1 = f.read 1 f.send @method, 0 f.read(1).should == val1 end end it "converts arguments to Integers" do File.open @fname do |io| o = mock("o") o.should_receive(:to_int).and_return(1) io.send @method, o io.pos.should == 1 end end it "does not accept Bignums that don't fit in a C long" do File.open @fname do |io| -> { io.send @method, 2**128 }.should raise_error(RangeError) end end it "raises IOError on closed stream" do -> { IOSpecs.closed_io.send @method, 0 }.should raise_error(IOError) end end